#ifndef __DRV_USART_H__
#define __DRV_USART_H__
#include <stm32f4xx.h>
#include "stdio.h"
void drv_usart6_init(void);
void drv_usart2_init(void);
void usart_send_string(USART_TypeDef* USARTx, char* str);
int fputc(int ch,FILE *f);

#endif //__DRV_USART_H__
